CVE-2025-62951 MEDIUM

CVE-2025-62951: WordPress H5P plugin <= 1.16.0 - Cross Site Scripting (XSS) vulnerability

Vendor Icc0Rz
Product H5P
Weakness CWE-79 · XSS
Published October 27, 2025
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in icc0rz H5P h5p allows Stored XSS.This issue affects H5P: from n/a through <= 1.16.0.

Explanation of Vulnerability in Simple Terms

02Summary

H5P versions up to 1.16.0 contain a cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject malicious scripts. The vulnerability requires user interaction—typically clicking a crafted link—and can affect other users viewing the same content. The impact is limited to reading or modifying non-sensitive data within the affected scope.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they view affected content.

Potential impact on your site

04Site Impact

Users' sessions or data could be compromised if they interact with content crafted by an authenticated attacker.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege account and the victim must click a link or visit a page containing the malicious payload.

Key dates

06Disclosure timeline

October 27, 2025 CVE published
April 28, 2026 Record updated